ISO 17536-1:2015/Amd 1:2021

Overview

ISO 17536-1:2015/Amd 1:2021 is an essential amendment to the international standard focused on aerosol separator performance testing for internal combustion engines in road vehicles. This amendment updates Part 1 of the series, which covers general principles and procedures. Published by ISO, it supports consistency and reliability in testing aerosol separators designed to trap particulate emissions from vehicle exhausts. The standard plays a crucial role in environmental protection efforts and regulatory compliance by specifying test methods that evaluate the efficiency of aerosol filters, including high-efficiency particulate air (HEPA) filters.

Key Topics

• Aerosol Separator Performance: The standard outlines performance testing methods for aerosol separators used in internal combustion engines, focusing on the ability to remove fine particulate matter.
• Test Arrangement: Specifies the setup involving an absolute filter combined in series with a HEPA filter to ensure accurate gravimetric efficiency measurement.
• Challenge Aerosol Specifications: Details the use of a challenge aerosol with a median particle diameter (D50 by volume) of 0.60 microns or a distribution matching the highest performing tested product.
• Gravimetric Efficiency Test: Defines the procedure to determine the mass increase of filters, which quantifies particle capture efficiency.
• Definitions and Measurements: Updates critical definitions such as mass increase (Δm), specifically related to the HEPA filter in the test arrangement.
• Test Flow Rates: Addresses testing at the highest flow rates designated for the absolute filter material and housing configuration, ensuring stringent performance verification.

Applications

ISO 17536-1:2015/Amd 1:2021 is vital for automotive manufacturers, emission control suppliers, and regulatory bodies aiming to:

• Verify and improve aerosol separation technologies in vehicle exhaust systems.
• Ensure compliance with emission standards related to particulate matter.
• Enhance the development of emission control filters, optimizing efficiency for environmental safety.
• Support research and development of new filter materials and housings by providing standardized test methods.
• Facilitate quality assurance and certification processes in the automotive industry.
• Contribute to air quality improvement by reducing harmful particle emissions from internal combustion engines.

Related Standards

• ISO 17536 Series: Other parts in the ISO 17536 series expand on specific aerosol separator test methods and performance criteria.
• ISO/TC 22 Standards: This standard is part of the ISO Technical Committee 22 portfolio related to road vehicles, including propulsion and powertrain components.
• ISO/IEC Directives: Compliance with the editorial and procedural rules outlined in these directives ensures harmonized international standard development.
• ISO 29461 Series: Covers air filter testing for internal combustion engines, often referenced alongside aerosol separator standards.
• Environmental Emissions Standards: Local and international regulations on vehicle emissions that rely on standardized test methods for filter performance evaluation.

By adhering to ISO 17536-1:2015/Amd 1:2021, industry stakeholders can reliably assess and validate aerosol separator efficiency, fostering sustainable vehicle emission control technologies and contributing to global environmental protection goals.